Instrument cooling jacket with air purge



FIG. 1 is a perspective view of an instrument cooling jacket with air purge embodying the principles of the invention;

FIG. 2 is a side elevational view of the device of FIG. 1;

FIG. 3 is a side elevational view of the device of FIG. 1 rotated 90° from the showing of FIG. 2;

FIG. 4 is a side elevational view of the device of FIG. 1 rotated 180° from the showing of FIG. 2;

FIG. 5 is an end elevational view of the device of FIG. 1;

FIG. 6 is a side elevational view of the device of FIG. 1 rotated 180° from the showing of FIG. 3; and,

FIG. 7 is an end elevational view of the device of FIG. 1 rotated 180° from the showing of FIG. 5. 

The ornamental design for an instrument cooling jacket with air purge, as shown and described. 